CN1998213B - 用于幅度不敏感的分组检测的方法和电路 - Google Patents
用于幅度不敏感的分组检测的方法和电路 Download PDFInfo
- Publication number
- CN1998213B CN1998213B CN2004800291270A CN200480029127A CN1998213B CN 1998213 B CN1998213 B CN 1998213B CN 2004800291270 A CN2004800291270 A CN 2004800291270A CN 200480029127 A CN200480029127 A CN 200480029127A CN 1998213 B CN1998213 B CN 1998213B
- Authority
- CN
- China
- Prior art keywords
- signal
- complex correlator
- amplitude
- complex
- baseband signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/38—Demodulator circuits; Receiver circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/04—Speed or phase control by synchronisation signals
- H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
- H04L7/042—Detectors therefor, e.g. correlators, state machines
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/661,943 US7567631B2 (en) | 2003-09-12 | 2003-09-12 | Method for amplitude insensitive packet detection |
| US10/661,943 | 2003-09-12 | ||
| PCT/CA2004/001565 WO2005027453A1 (fr) | 2003-09-12 | 2004-08-26 | Procede de detection de paquet insensible a l'amplitude |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1998213A CN1998213A (zh) | 2007-07-11 |
| CN1998213B true CN1998213B (zh) | 2010-09-29 |
Family
ID=34273982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004800291270A Expired - Fee Related CN1998213B (zh) | 2003-09-12 | 2004-08-26 | 用于幅度不敏感的分组检测的方法和电路 |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US7567631B2 (fr) |
| EP (1) | EP1665708A4 (fr) |
| JP (1) | JP4675323B2 (fr) |
| KR (1) | KR101078570B1 (fr) |
| CN (1) | CN1998213B (fr) |
| WO (1) | WO2005027453A1 (fr) |
Families Citing this family (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7567631B2 (en) * | 2003-09-12 | 2009-07-28 | Neil Birkett | Method for amplitude insensitive packet detection |
| US7324609B1 (en) * | 2003-11-05 | 2008-01-29 | Advanced Micro Devices, Inc. | DC offset cancellation in a direct conversion receiver configured for receiving an OFDM signal |
| US7903764B2 (en) * | 2004-05-10 | 2011-03-08 | Broadcom Corporation | Integrated burst FSK receiver |
| US7634034B2 (en) * | 2004-07-01 | 2009-12-15 | Staccato Communications, Inc. | Payload boundary detection during multiband receiver synchronization |
| US7697905B2 (en) * | 2004-09-10 | 2010-04-13 | Qualcomm Incorporation | Local oscillator feedthrough cancellation scheme to remove RF and baseband offsets |
| US7327803B2 (en) | 2004-10-22 | 2008-02-05 | Parkervision, Inc. | Systems and methods for vector power amplification |
| US7355470B2 (en) | 2006-04-24 | 2008-04-08 | Parkervision, Inc. | Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning |
| US8013675B2 (en) | 2007-06-19 | 2011-09-06 | Parkervision, Inc. | Combiner-less multiple input single output (MISO) amplification with blended control |
| US7911272B2 (en) | 2007-06-19 | 2011-03-22 | Parkervision, Inc. | Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments |
| US8334722B2 (en) | 2007-06-28 | 2012-12-18 | Parkervision, Inc. | Systems and methods of RF power transmission, modulation and amplification |
| KR100653199B1 (ko) * | 2005-11-18 | 2006-12-05 | 삼성전자주식회사 | 로컬 신호를 이용하여 수신 신호에서 리키지 성분을제거하는 rf 수신 장치 및 방법 |
| US7675983B2 (en) * | 2006-04-14 | 2010-03-09 | Freescale Semiconductor, Inc. | Mitigation of DC distortion in OFDM receivers |
| US7937106B2 (en) * | 2006-04-24 | 2011-05-03 | ParkerVision, Inc, | Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same |
| US8031804B2 (en) | 2006-04-24 | 2011-10-04 | Parkervision, Inc. | Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortion |
| US8315336B2 (en) | 2007-05-18 | 2012-11-20 | Parkervision, Inc. | Systems and methods of RF power transmission, modulation, and amplification, including a switching stage embodiment |
| US7620129B2 (en) | 2007-01-16 | 2009-11-17 | Parkervision, Inc. | RF power transmission, modulation, and amplification, including embodiments for generating vector modulation control signals |
| US7941106B2 (en) * | 2007-05-10 | 2011-05-10 | Skyworks Solutions, Inc. | Systems and methods for controlling local oscillator feed-through |
| GB0803737D0 (en) * | 2008-02-29 | 2008-04-09 | Melexis Nv | Pulse count control for brushed DC motor driven by pulse width modulation |
| WO2009145887A1 (fr) | 2008-05-27 | 2009-12-03 | Parkervision, Inc. | Systèmes et procédés de transmission, de modulation et d'amplification de puissance radioélectrique (rf) |
| KR20120064250A (ko) * | 2010-12-09 | 2012-06-19 | 한국전자통신연구원 | 통신 시스템에서 데이터 수신 장치 및 방법 |
| KR20140026458A (ko) | 2011-04-08 | 2014-03-05 | 파커비전, 인크. | Rf 전력 송신, 변조 및 증폭 시스템들 및 방법들 |
| JP6174574B2 (ja) | 2011-06-02 | 2017-08-02 | パーカーヴィジョン インコーポレイテッド | アンテナ制御 |
| CN102457339A (zh) * | 2012-02-08 | 2012-05-16 | 国家无线电监测中心 | 一种无线电发射设备监测系统及方法 |
| GB201215114D0 (en) * | 2012-08-24 | 2012-10-10 | Phasor Solutions Ltd | Improvements in or relating to the processing of noisy analogue signals |
| EP2711723A1 (fr) * | 2012-09-20 | 2014-03-26 | Thomson Licensing | Appareil et procédé pour détecter un rayonnement de micro-ondes |
| US9419829B2 (en) * | 2012-11-06 | 2016-08-16 | Intel Corporation | Apparatus, system and method of direct current (DC) estimation of a wireless communication packet |
| US9100261B2 (en) | 2013-06-24 | 2015-08-04 | Freescale Semiconductor, Inc. | Frequency-domain amplitude normalization for symbol correlation in multi-carrier systems |
| US9106499B2 (en) | 2013-06-24 | 2015-08-11 | Freescale Semiconductor, Inc. | Frequency-domain frame synchronization in multi-carrier systems |
| US9282525B2 (en) | 2013-06-24 | 2016-03-08 | Freescale Semiconductor, Inc. | Frequency-domain symbol and frame synchronization in multi-carrier systems |
| EP3047348B1 (fr) | 2013-09-17 | 2025-03-19 | Parkervision, Inc. | Procédé servant à restituer une fonction porteuse d'information sur le temps |
| US9374197B2 (en) | 2014-03-28 | 2016-06-21 | Intel Corporation | Methods and arrangements for direct current estimation of a wireless communication packet |
| CA2987693C (fr) | 2015-05-29 | 2021-03-09 | Huawei Technologies Co., Ltd. | Methode et systeme de transmission de signal i/q, et appareil |
| US10484230B2 (en) * | 2017-05-01 | 2019-11-19 | Google Llc | Mitigating optical modulator impairment for coherent optical communication systems |
| CN113875202B (zh) * | 2019-05-29 | 2024-03-08 | 卡姆鲁普股份有限公司 | 射频信号的灵敏且稳健的帧同步 |
| US11736320B2 (en) * | 2022-02-14 | 2023-08-22 | Ultralogic 6G, Llc | Multiplexed amplitude-phase modulation for 5G/6G noise mitigation |
| US12250100B2 (en) * | 2022-02-14 | 2025-03-11 | David E. Newman | Selecting a modulation scheme responsive to fault types in 5G/6G |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073779C (zh) * | 1996-06-12 | 2001-10-24 | 三星电子株式会社 | 数字解调器、高清晰度信号接收机及数字解调方法 |
Family Cites Families (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5276902A (en) * | 1988-11-07 | 1994-01-04 | Fujitsu Limited | Memory access system for vector data processed or to be processed by a vector processor |
| JP2744076B2 (ja) * | 1989-08-09 | 1998-04-28 | 株式会社日立製作所 | フレーム同期検出回路 |
| US5276706A (en) * | 1992-05-20 | 1994-01-04 | Hughes Aircraft Company | System and method for minimizing frequency offsets between digital communication stations |
| US5251263A (en) * | 1992-05-22 | 1993-10-05 | Andrea Electronics Corporation | Adaptive noise cancellation and speech enhancement system and apparatus therefor |
| JPH06244888A (ja) * | 1993-02-12 | 1994-09-02 | Fujitsu Ltd | Qam復調器 |
| US5285472A (en) * | 1993-02-24 | 1994-02-08 | Gec-Marconi Electronic Systems Corp. | System for determining the acquisition of, and frequency compensating, a phase modulated pseudonoise sequence signal |
| US5536902A (en) * | 1993-04-14 | 1996-07-16 | Yamaha Corporation | Method of and apparatus for analyzing and synthesizing a sound by extracting and controlling a sound parameter |
| US5468115A (en) * | 1994-12-02 | 1995-11-21 | Alvis; Brady A. | Bilevel trailer with a lowerable upper deck |
| US20010055320A1 (en) * | 1994-12-15 | 2001-12-27 | Pierzga Wayne Francis | Multiplex communication |
| US5640416A (en) * | 1995-06-07 | 1997-06-17 | Comsat Corporation | Digital downconverter/despreader for direct sequence spread spectrum communications system |
| TW297965B (fr) | 1995-06-26 | 1997-02-11 | Hitachi Ltd | |
| US5966411A (en) * | 1996-12-18 | 1999-10-12 | Alcatel Usa Sourcing, L.P. | Multipath equalization using taps derived from a parallel correlator |
| JP3017983B2 (ja) * | 1997-11-19 | 2000-03-13 | 株式会社ケンウッド | 同期捕捉回路 |
| CN1115030C (zh) * | 1997-12-17 | 2003-07-16 | 株式会社建伍 | 接收机接收信号绝对定相装置 |
| DE19832851C1 (de) * | 1998-07-21 | 2000-03-30 | Siemens Ag | Akquisitionsverfahren und Anordnung zur Durchführung des Verfahrens |
| US6466832B1 (en) * | 1998-08-24 | 2002-10-15 | Altec Lansing R & D Center Israel | High quality wireless audio speakers |
| JP4128685B2 (ja) * | 1999-02-08 | 2008-07-30 | 日本無線株式会社 | 受信機 |
| US6038271A (en) * | 1999-03-02 | 2000-03-14 | Harris Corporation | Correlator with cascade data paths to facilitate expansion of correlator length |
| JP3908033B2 (ja) * | 1999-06-04 | 2007-04-25 | 三菱電機株式会社 | 位相検出装置、これを用いたタイミング再生装置、および、これを用いた復調装置 |
| JP4256057B2 (ja) * | 1999-09-30 | 2009-04-22 | 株式会社東芝 | 非線形補償器 |
| US6704353B1 (en) * | 1999-11-29 | 2004-03-09 | Cyntrust Communications, Inc. | Method and apparatus for tracking the magnitude of channel induced distortion to a transmitted signal |
| US6735258B1 (en) * | 2000-09-29 | 2004-05-11 | Arraycomm, Inc. | Moderate rate phase shift keying codec |
| US6993100B2 (en) * | 2000-12-12 | 2006-01-31 | Skyworks Solutions, Inc. | Burst detector |
| US7346918B2 (en) * | 2000-12-27 | 2008-03-18 | Z-Band, Inc. | Intelligent device system and method for distribution of digital signals on a wideband signal distribution system |
| PT1382172E (pt) * | 2001-03-30 | 2009-01-21 | M & Fc Holding Llc | Sistema, método e aparelho melhorados para comunicação de pacotes de dados sem fios aplicáveis tanto a redes remotas como a redes locais |
| JP3711253B2 (ja) * | 2001-08-09 | 2005-11-02 | 日本無線株式会社 | ユニークワード検出方法および受信装置 |
| US7190748B2 (en) | 2001-08-17 | 2007-03-13 | Dsp Group Inc. | Digital front-end for wireless communication system |
| US7085335B2 (en) | 2001-11-09 | 2006-08-01 | Parkervision, Inc. | Method and apparatus for reducing DC offsets in a communication system |
| JP3829703B2 (ja) * | 2001-11-30 | 2006-10-04 | 株式会社富士通ゼネラル | 多値qam信号の同期検出方法、復号判定閾値設定方法および同期検出装置 |
| US6724834B2 (en) | 2002-02-22 | 2004-04-20 | Albert L. Garrett | Threshold detector for detecting synchronization signals at correlator output during packet acquisition |
| US7295517B2 (en) | 2002-11-27 | 2007-11-13 | Texas Instruments Incorporated | Method and apparatus for channel quality metric generation within a packet-based multicarrier modulation communication system |
| US6784740B1 (en) * | 2002-12-20 | 2004-08-31 | Atheros Communications, Inc. | Power amplifier |
| US7369658B2 (en) * | 2003-04-07 | 2008-05-06 | Optichron, Inc. | Secure modulation and demodulation |
| US7564892B1 (en) * | 2003-06-30 | 2009-07-21 | Nxp B.V. | Satellite transcoder |
| US7567631B2 (en) | 2003-09-12 | 2009-07-28 | Neil Birkett | Method for amplitude insensitive packet detection |
-
2003
- 2003-09-12 US US10/661,943 patent/US7567631B2/en not_active Expired - Lifetime
-
2004
- 2004-08-26 EP EP04761729A patent/EP1665708A4/fr not_active Ceased
- 2004-08-26 CN CN2004800291270A patent/CN1998213B/zh not_active Expired - Fee Related
- 2004-08-26 JP JP2006525581A patent/JP4675323B2/ja not_active Expired - Fee Related
- 2004-08-26 WO PCT/CA2004/001565 patent/WO2005027453A1/fr not_active Ceased
- 2004-08-26 KR KR1020067005037A patent/KR101078570B1/ko not_active Expired - Fee Related
-
2009
- 2009-07-23 US US12/508,544 patent/US8085879B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073779C (zh) * | 1996-06-12 | 2001-10-24 | 三星电子株式会社 | 数字解调器、高清晰度信号接收机及数字解调方法 |
Non-Patent Citations (1)
| Title |
|---|
| 全文. |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070008508A (ko) | 2007-01-17 |
| EP1665708A4 (fr) | 2008-12-10 |
| US20050058227A1 (en) | 2005-03-17 |
| WO2005027453A1 (fr) | 2005-03-24 |
| EP1665708A1 (fr) | 2006-06-07 |
| CN1998213A (zh) | 2007-07-11 |
| JP4675323B2 (ja) | 2011-04-20 |
| US20090285334A1 (en) | 2009-11-19 |
| US7567631B2 (en) | 2009-07-28 |
| JP2007505525A (ja) | 2007-03-08 |
| KR101078570B1 (ko) | 2011-11-01 |
| US8085879B2 (en) | 2011-12-27 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 |
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